Disk valve for internal-combustion engines.



J. s, ONBAL. DISK VALVE FOR INTERNAL OOMBDSTION ENGINES. j APPLIUATION FILED SEPT.-23, 1913. 1,1 30A? Patented Mar. 2, 1915.

4 SHEETS-SHEET 1' l I h 1 l i WITNESSES INZENTOH ATTORNEYS J. S. ONEAL. I DISK VALYEKPORIHTERNAL COMBUSTION ENGINES.

APPLICATION FILED SEPT. 23; 1913- Patented Mar. 2, 1915 4 fiEBETS-SHEBT 2.

EE/V7 1251 272 070/1490! WITNE8' S ATTORNEYS J. S. ONEAL.

DISK VALVE FOR INTERNAL COMBUSTION ENGINES. APPLICATION FILED SEPT. 23, 1913.

1,1 30,427. Patented Mar. 2, 1915.

4 SHEBTS-SHBET a.

, IHIHHH unmm HHUHTIM Arm/mars J. s. ONEAL. DISK VALVE FOR INTERNAL COMBUSTION ENGINES.

APPLICATION FILED SEPT. 23, 1913- Patented Mar. 2, 1915.

WITNESSES ATTORNEYS citizen of the United Jenn s. owner, or CINCINNATI, oHIo.

DISK VALVE roe. INTERNAL-COMBUSTION sardines.

macaw.

Specification of Letters Patent.

rete ted Mai-i a. .iaia

Application filed September 23, 1913. Serial No. 791,295.

To all whom it may concern:

Be it known that 1 JOHN S. ONnaL, a tates, and a resident of Cincinnati, in the county of Hamilton and State of Ohio, have invented a new and Improved Disk Valve for Internal-Combus tion Engines, of which the following is a full, clear, and exact description.

The object of the invention is to provide an inexpensive, simple and eflicient valve controlling the inlets or outlets of a pair of cylinders of an internal combustion engine, and so positioned that the thrust on the valve produced during the explosion or the compression in the cylinder isreduced to a minimum, and also the leakage of gas between the valve and its seat The above objects are attained by using in an internal combustion engine T-shaped cylinders, every pair of which have theirinletsand outlets controlled by separate disk valves facing each other and engaging seats adapted to yield and continuously pressed against the valves by resilient means, all parts of the valve being surrounded by a jacket through which water circulates.

The invention consists of the construction and combination of parts to be more fully described hereinafter and fully set forth in the claims.

Reference is to be had to the accomlpany ing drawings forming a part of this specification, in which like characters indicate corresponding parts in all the vlews and 1n which:

Figure l is a side elevation of an internal combustion engine embodying my invention,

with certain parts ofit broken away to show the detail of construction; Fig. 2 is a vertical section on line 2-2, Fig. 1, showing the intake valve tully'open; Fig. 3 is a similar section to Fig.2, showing the exlfaust valve fully open; Fig. ,4 is a horizontal section on line 4-4:, Fig. 1; Fig. 5 is a vertical section on line 5-5, Fig. 1, showing the means of transmission and the connection of the two oppositely disposed valves; and Fig. 6 is a section on line 66, Fig. 5, showing in elevation the relative position of the exhaust valves and openings. i

. Referring to the drawings, 7 represents a block casting, preferably containing the four cylinders of the engine, each of the cylinders fifhaving aiuel inlet 9 .andoutlet 10 opposite each other, forming what is .14 a s has:

art a T-Shaped cylinder. The block 7 torming the fourcylinders is so arranged that each two cylinders form a unit 11. Each of the units is, intermediate its cylinders, provided with a horizontally disposed opening & in which are positioned bushin s 13 'reeeiving a shaft 14: adapted to journal-n1 said bushings Each of the shafts 14 has its 'end projecting out of the block '7 and thereon receives valves, of which 15 is the inlet valve and 16 the outlet valve. The said valves positioned on the opposite ends of the shaft are made rigid therewith by means oi nuts 17 provided at theends of the shaft, or any other suitable means. g

y of-the {units llofblock 7 is provided with a recess 18,011 the sides facing the valves and concentric therewith. Fitting into cachet said recesses is a valve seat 19 each provided wit-ha pair of annular extensions 20, and each fitting into annular grooves 21 pmvided in the block 7 about the inlets or the outlets ,of the two cylinders of ,the nits 11.- Each of the annular extensions 20 is provided with a circular groove 22 adapted to receive piston rings 23 fitting snugly against the annular grooves 21.

The valve seats l9are pressed against the faciirgsurface of the disk valves 15 and 16 respectively by coil springs 24 positioned -in the block 7, or any other suitable means, the movement of the valve seat beingguid'ed by the recess 18 and also by the grooves :21 engaged-by the extensions- 210. This structure, while permitting the axial movement of the valve seat 19,, prevents its movement about the axis.

The inlet-valve 15 is provided with" an elongated curved opening 25 by means of which it controls the inlets of a pair of cylinders torining the :uin'it.v The opening 25 is substantiall. of the same width as theldiameter of the nlet ,9, its length being such as to maintain thein-l'et opening in communi cation with the carbureter until the corresponding piston reaches its lowest point, when itis closed, that is, when the c'onpression is to be llhe outletvalvewds similarlyprov'id ed with an: elongated =;cu rved 'ep n ns fi. t ie dflii f whic is amlin t d me e io t we et qpc ie lfl a d h length 1 vl eeis each to than the. de re veh iet th r ede The val e disks-1 nd, -;6 ,pce'g ne the camshaft til that the opening 25 on the disk 15 follows the opening 26 on the disk 16. For example, taking the first cylinder and the line on Fig. 1, after the opening 26 has passed the exhaust, the opening 25 opens the inlet, that is, establishes communication between the inlet and the carburetor. As the opening 26 of the disk valve 16 leaves the exhaust opening 10 of the first cylinder, it opens the exhaust valve of the second cylinder, the order of the action of the cylinders being 1, 2, 4, 3. The valve disks 15 and 16 controlling the third and fourth cylinders rotate in a direction opposite to the disk controlling the first and second cylinders, as can be seen'froInFig. 1.

The shafts 14- on which the disk valves 15 and 16 are mounted rotate at half the speed of the main shaft of the engine. The trans,- mission from the main shaft to the shafts 1 1- can be produced in any desired way, and, as shown in the drawings, each of the shafts 14 is provided at one end with a sprocket 27 rigidly secured to said shaft and engaging an endless chain 28, also engaging a sprocket 29. Each of the sprockets 29 is integral with a worm wheel 30 rigidly mounted on a countershaft 31 journaling in bearing blocks secured to a crankcase 33, the worm wheels 30 engaging the worms 34,

one of which is right and the other left,

both being mounted rigidly on a shaft 35, journaled in bearings forming part of the crank case and carrying at one end a gear 36 meshing withthe gear 37 secured on the main shaft. The relation between the worm wheels and the worms is such that the worm wheel rotates at half the speed of the worm, while the shaft 35 rotates at the same speed as the main shaft. By means of this arrangement the shafts 1 L rotate at half the speed of the main shaft, as is customary in all of the internal combustion engines of the four cycle type.

The disk valves 15 and 16 are protected ing to where the cover is positioned. The

ends of the openings 40 may be threaded or flanged to receive the connections 41 leading either to the intake 42 from the carbureter or to the exhaust pipe 43. The cover plates 38 are secured in any suitable way to the block casting 7, provision being made to leave a runningclearance for the disk valvein the plates between the casting and the cover plates The valve seats 19, which engage the disk valves, are maintained in engagement with the said disk by means of the springs 24; the valve seats and the two annular lateral extensions of each seat fitting into the grooves about the inlet or the outlet openings have a small clearance in the back needed for the action of the springs 24. The packing rings 23 on the annular extension prevent the gases from passing back of the valve seat 19.

The provision of the shaft 14; between a pair of cylinders forminga unit permits the utilization of a single valve for the inlets or outlets of a pair of cylinders. Furthermore, the inlet and outlet ports in the same cylinder being opposite each other, and being controlled-by valves mounted on the same shaft, will minimize the thrust produced on the same during the explosion or compression in the cylinder, as pressure on the opposite valves will be in opposite directions.

The shafts on which the disk valves are carried and the valve seats are all sur- I .pears from the description, the valve controlling a pair of cylinders is continuously rotating and silent in its action; and, as stated, each pair of valves controlling a unit is balanced to avoid any thrust action by the axis and the valves.

Having thus described my invention, 1 claim as new and desire to secure by Letters Patent:

1. In an internal combustion engine,a plurality of units, each comprising a pair of cylinders and each cylinder having oppositely disposed inlets and outlets; yielding valve seats in said unit, one about said inlets and the other about said outlets, said valve seats having means preventing the gases from passing behind said seat; a disk valve in engagement with each of said valve seats, one for controlling the inlets of the unit and the other the outlets of the same; and transmissionmeans from the main shaft of the engine to said Valves for rotating the same at a predetermined speed.

2. In an internal combustion engine havioa ing a pluralityof units, each comprising a pair of cylinders and each cylinder having oppositely disposed inlets and outlets; valve seats in said units, one for the two inlets and one for the two outlets, each of said seats having means adapted to prevent a leak of gases about the seat; a disk valve in engagement with each of saidvalve seats for controlling the inlets to the cylinders of the unit andthe outlet of the same; means connecting said valves and maintaining said valves in a relatively fixed position to each other: and transmission means from the main shaft to said. means binding said valves whereby said valves can be rotated at a predetermined speed.

3. In an internal combustion engine comprising a plurality of units, each formed of two cylinders having oppositely disposed inlet and outlet ports, each of the units having a recess about the inlets and a recess about the outlets of the same; a valve seat positioned in each of said recesses, and having means adapted to prevent the leak of gases between the seat and the bottom of the recess; a disk valve engaging each of said seats for controllin the inlets to said cylinders of the unit and the outlets of the same; means positioned intermediate the.

cylinders of the unit connecting said valves and maintaining the same in relative fixed position; and transmission means from the 'main shaft to said means whereby said valves can be rotated at a predetermined.

speed.

4;. In an internal combustion engine having a plurality of units, each formed of a pair of cylinders having oppositely disposed inlets and outlets,'each of the units having a recess about the inlets and the outlets and an annular groove about each inlet and each outlet of each cylinder; a valve seat positioned ineach of said recesses and having annular projections engaging said annular grooves; a disk valve engaging each ofsaid seats for controlling the inlets and the outlets of the unit; resilient means in said units for maintaining the engagement between the valve seat and the valve; a shaft positioned intermediate the cylinders of the unit engaging said valves and maintaining the same in fixed relative position; and transmission-means from the main shaft of the engine to said shaft between the cylinders whereby said valves are rotated at a predetermined speed.

5. In an internal combustion engine having a plurality of units, each comprising a pair of cylinders, each cylinderhaving an oppositely disposed inlet and outlet, each of the units having a recess about the inlets and the outlets and an annular groove about each inlet and outlet; a valve seat positioned in each of said recesses, one for the inlets and the other for the outlets, the inlet valve seat-having lateral annular extensions engaging the annular grooves about theinlets and the outlet valve seat having lateral an-.

nular extensions engaging the annular grooves about the outlets; packing rings on said lateral extensions of said valve seat; a disk valve for the inlet valve seat and a disk valve for-the outlet valve seat; springs in said units binding said valve'seats for main:

tainingthe contact between said valve seats and said valve; a shaft connecting said valve disks and positioned intermediate the cylinders of the unit; and transmission means from the main shaft to said shaft positioned intermediate the cylinders for rotating said disks at a predetermined speed, whereby said inlets and outlets of a unit are controlled.

6. In an internal combustion engine, the combination of a pair of cylinders, each cylinder having an oppositely located inlet and outlet, said pair. ofv cylinders having a recess about the inlets and a recess about the outlets and an annular groove about each inlet and outlet; a yielding valve seat positioned in each of said recesses and having annular projections engaging said annular grooves, said annular projection having C. A. FREEMAN. 

